[Bridge] Ulog : recvfrom no space available => how do I calculate a good value ?

Jean-Michel Hautbois jhautbois at gmail.com
Mon Jan 4 06:49:59 PST 2010


2010/1/4 Saikiran Madugula <hummerbliss at gmail.com>:
> Jean-Michel Hautbois wrote:
>> Hi there !
>>
>> I keep trying to use the ulog/netlink system to receive only the
>> packets I'm interested by and bridging everything else...
>> I have a problem using this, because of a too small buffer ?
>>
>> I am using the recvfrom as the example given on the website, and I am
>> getting a "no space buffer available" when I have packets  about
>> 2Mbits/sec...
> Probably the netlink receive buffer is being overrun, try increasing the netlink
> receive buffer size (see ipulog_create_handle() being called in
> libipulog/ulog_test.c for example).

I have a buffer length of 65536 for the socket... It already seems
high for such a low bandwidth...
Or am I misunderstanding something ?

JM


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